Liquid-separator.



PATENTED DEC. 4, 1906.

2 SHEETS-SHEET 2.

Mi, [/VVE/V Tole.

WITNESSES.-

A IITORNE 1 5 liquid-separator embodying bowl.

rior corrugations,

To all whom, it may concern:

UNITED srArns LEAN DER J.

HEDDERICK, or FLORA, INDIANA.

LlQUlD-SEPARATOR.

Specification of Letters Patent.

Patented Dec. 4, 1906.

Application filed July 12,1905. Serial No. 269.369.

Be it known that I, LEANDER J. Hnnnnn- 10K, a citizen of the UnitedStates, residing at Flora, in the county of Carroll and State ofIndiana, have invented a new and useful LiquidSeparator, of which thefollowing is a specification.

The inventionrelates to liquid-separators, and while especially adaptedand designed, and herein shown and described, as a separator for milkand cream it to be understood that it will operate with equal facilityfor separating other liquids differing 1n specific gravity.

The object of the invention is to provide a 7 new and 1m proved featuresof reliability, and efficiency and for reducing the necessary operativepower.

It is well known that in the separation of milk and cream theskimmed-milk portion be mg the heavier element will occupy the zone ofhigh centrifugal force,

being of lighter specific gravity is forced to occupy the zone of lesscentrifugal force, that is usually termed inthe art the creamwall. Inthe usual construction of cream separators, and in that herein shown anddescribed, it is necessary for the cream globules to separate from themilk element and to travel from an outer to an inner portion of thecentrifugal It is further Well known that if the cream globules aregrouped together forming a body and only slight y mingled with theheavier liquid they can travel to the cream wall with less resistancethan if mingled indiscriminately with the heavy liquid.

It is an important object of the invention to interpose walls betweenthe grouped cream globules and the milk molecules to separate theglobules from the milk and to assist each in its passage of the other.

It 1s a further object of the invention to substitute a novel form ofcorrugated wings between the milk and the cream for the plain w ngsordinarily'used, as it has been demonstrated by practice that the creamlobules will gather in increased numbers in t e exteor the corrugationsof less centrifugal force, being forced to seek such corrugations by theheavier milk molecules, assuming the interior corrugations or the cor;rugations of greatest force. It will thus be seen that the creamglobules being contained.

in large numbers in the exterior corrugations sary for theirconstruction.

while the cream are enabled to pass the molecules with the minimumresistance, thereb increasing the rapidity and thoroughness o theseparations.

It will be obvious that the corrugations will greatly stiffen the wings,making them entirely self-sustaining against the high centrifugal forceapplied thereto, and reducing to a minimum the amount of material neces-It is a further object of the invention to pivot the corrugated wingsabout a central space to be occupied by the separated cream, and toleave the outer ends of the pivoted wings entirely free, permittin themto freely expand within and ear tight y against the side of the bowl,thus to preventthe passage of liquid therebetween, but to permit t eclosing of the wings for their removal from the bowl for cleaning.

It is a further object of the invention to provide novel skimmingansconstructed integral for receiving and schariing the separated milk andcream from t e dischargeopenings of the centrifugal bowl.

With these and other objects in view the presentinvention consists inthe combination and arrangement of parts, as will be hereinafter morefully described, shown in the accompanying drawings, and particularlypointed out in the accompanying claims, it being understood that changesin form, proportion, size, and minor details may be made within thescope of the claims without departing from the spirit or sacrificing anyof the advantages of the invention. I

In the accompanying drawings, Figure 1 is a vertical sectional enlargeddetail view of' the centrifugal bowl and its contained corrugated wingsand integral skimming-pans. Fig. 2 is a top plan view of the centrifugalbowl of my improved liquid-separator shown partially in section. Fig. 3is a view in side elevation of one of the corrugated wings forming thewing series of my improved liquid-separator Fig. 4 is a fra mentarydetail transverse sectional view of one form of wings. Fig. 5 is afragmentary view, in side elevation, of one of the wings of the serieswith a straight edge, as shown in Fig. 7. Fig. 6 is a section showingthe means for admitting fluid from the float-cup to the chargeaperture.

Like characters of reference designate the drawings.

In its preferred embodiment the improved liquid-separating device;comprises a rotatable centrifugal separator-bowl 1, cylindrical in formand riguilv mounted upon a spindle 5 2. The spindle 2 is provided at itslower extremity with an angular opening 3, adapted for engagement withan angular stud.

Vithin the centrifugal bowl 1 are disposed a plurality of wings 35,pivotally secured at their inner edges to rings 36 and forming acircular series thereabout and leaving a central open space concentricwith the centrifugal bowl. The wings 35 are curved from their inner totheir'outer edges and on a line I 5 transverse to their lengths and tothe axis of the bowl, as indicated more especially in Fig. 2. The wingsare also provided with a plurality of corrugations 37, following thelines of curvature and so arranged that the 2o corrugations of each wingengage within the corresponding corrugations of the next wing in series,permitting the wings to be folded together for insertion into or removalfrom the bowl 1. About the upper ring 38 is dis- 25 posed an annulardisk39, fitting snugly within the bowl 1 and provided with perforations40ibetween the ring and its periphery and arranged to admit fluid th thetop of the wings 35. The bowl 1 is provided with a 0 closure 41 with adiameter substantially equal to the diameter of the bowl and having acentral charging aperture 42. The aperture 42 is continued by a centralopening entirely through the closure member, and in 5 which is disposeda bolt 43, extending longitudinally and axially through the bowl andengaging the bottom, as by the screw-threads 44 within the socket 45, toclamp the closure rigidly .upon the wing series and to prevent 0 thedisplacement of the closure.

5 About the top of the aperture 42 is provided an inwardly-extendingflange 47 and an outwardly-extending flange 48 and through which passesa tube 49, extending within an open central space within the wing series50 and having a screw 50, disposed to regulate the opening at its upperend. About and beneath the flange48 is disposed a hood 51, arranged toreceive fluid discharged from the pipe 49 and provided with adischarge-pipe 5 5 52. Above the hood 51 is disposed a floatcup 54,provided with means for admitting fluid from the cup to thecharging-aperture 42. At any convenient point a reservoir is mounted,provided with a cook or other ap- 6 o proved means for admitting fluidfrom a reservoir to the float-cup 54.

The bottom of the centrifugal bowl is provided with a plurality ofopenings 56 to discharge fluid into a skimming-pan 57, ar-

6 5 ranged about the spindle 2 and resting upon a support 32, the panbeing provided with a conical bottom 58 and a discharge-pipe 59- bowland forming a complete division of the milk from the outercream-opening.

The operation of the improved separator in the separation of milk andcream is as fol lows: The whole milk from a suitably-disposed reservoiris permitted to flow into float-cup 54 and therefrom intd thechargingopening 42. From the opening 42 the whole milk is dischargedthrough openings 46 and 40 into the centrifugal bowl and upon thecorrugated wings 35. The centrifugal bowl 1 being in rapid rotation andthe straight outer edges of the wings making a complete division in theliquid at their outer ends and against the bowl-wall, the heavierparticles of milk congregate in the corrugations far thest from thecenter and which have their concaved surfaces opening toward the center, as indicated by heavy arrows. The

wall to the central heavier milk occupying the corrugations of greaterforce, the lighter cream particles are forced to assume positions in thecorrugations nearer the center and in the concavitles opening outwardly,as indicated by the light arrows, and in such position are protectedfrom the action of the milk-molecules; It will thus be seen that theheavier, milk particles assuming positions of greatest centrifugal forcewill force the lighter crea particles toward the center and into thecentral open space and out through the tube 49and into the hood 51,where they will be discharged through tube 52.

through openings 56 into skimming-pan 57 and be discharged through thespout 59.

The heavier milk will pass" downward between the wings and out Havingthus described the invention, what is claimed is 1. In aliquidseparator, a rotating vessel,

upright corrugated wings pivotally connected with each other at theirinner ends and about an opening concentric with the vessel,

a cap for the wings and provided with openings communicating with thewings between the pivots. and the vessel, a cover for the vessel havingan axial chargingopening terminating in branch openings communicatingwith the openings of the cap, and a discharge-tube passing through thecover and extended within the center opening of the wings.

2. In a liquid-separator, a pylindricalyes' sel rotatably mounted on anaxial spindle" rigid with the vessel and having an axialcharging-opening at the top and an openin' at the bottom adjacent thespindle [O the axial opening and arranged to receive discharge of theheavier liquid, a plurality of 1 corrugated wings arranged in a circularseries and disposed within and concentric with the vessel, an annularflange formed about the chargingopening and provided with a passage forthe discharge of the lighter liquid; a tube registering with theflange-opening and extending within the circular series of Wings, areceiving-hood disposed about the lighter liquid thrown centrifugallyfrom the flange-opening and having an opening registering with thecharging-opening, a discharge-spout communicating with the hood, askimming-pan disposed about the spindle and arranged to receive theheavier liquid from the bottom opening, a discharge-pipe communicatingwith the pan, and means for rotating the spindle.

3. In a liquid-separator, a rotating vessel, upright wings pivotallyconnected wlth each other at their inner ends and about an openingconcentric with the vessel, each wing being curved from its inner to itsouter edge and having parallel corrugations extending from the inner tothe outer edges thereof, the outer edge of each wing being straight andcontacting throughout its length with the wall of the vessel, a cap forthe wings and provided with openings communicatingwith the wings betweenthe pivots and the vessel, a cover for the vessel having an axialcharging-opening terminating in branch openings communicating with theopenings of the cap, and a discharge-tube passing through the cover andextending within the center openin of the wings.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

LEANDER J. HEDDERICK.

Witnesses:

JOHN WILKINSON, ELMER M. EIKENBERY.

